Asp.net / Asp.net MVC
Announcing the ASP.NET and Web Tools 2012.2 Release Candidate - A bunch of new features coming to Visual Studio. Creating a complete ASP.Net MVC 4.0 application with Visual Studio 2012, C# , EF 5.0 (Code First) - part 1 - Great read on creating an MVC 4 with EF.
Javascript / jQuery
Essential JavaScript Namespacing Patterns - It is well known that Addy Osmani is my javascript hero. This article changed my methodology for coding javascript. jQuery API Documentation - The jQuery API Documentation got a face lift recently. I find it much more usable. jQuery UI also had an update recently.
CSS
All you need to know about CSS Transitions - CSS transitions have always stumped me. I've always relied on javascript for animations. This gives a great overview.
Web Development
Web Developer Checklist - This is a checklist that every web developer should checkout. It provides you with a basic check list of all the things you need to look at while building a website, but also gives you links to help you out with each item.
Other Reads
Windows 8 productivity: Who moved my cheese? Oh, there it is. - Article by Scott Hanselman about where some stuff has been moved and new features in Windows 8. This is a really good read if you are new to Windows 8.